Whitepaper called VoIP Security - Methodology and Results.
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Two closely related stack based buffer overflows exist in the SIP/SDP handler of Asterisk versions below 1.4.3. The vulnerabilities are very similar but exist as two separate unsafe function calls.
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Asterisk Project Security Advisory - Two closely related stack based buffer overflows exist in the SIP/SDP handler of Asterisk, the vulnerabilities are very similar but exist as two separate unsafe function calls.
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